Pandemia is from New Latin pandemia, from Greek pandēmia 'the whole people', from pandēmos 'of all the people', from pan 'all' + dēmos 'people'. Important recorded forms include pandēmos (Ancient Greek), pan (Ancient Greek), and dêmos (Ancient Greek). Morphologically, the word preserves a built structure whose named elements carry the historical sense into English. The modern sense remains close to that composition, with the parts narrowing into a single lexical item. In current use it covers a widespread epidemic affecting a whole region or population. The wider family includes derived forms such as pandemic and related words such as pandemic, endemic, and epidemic.